PM52894: 701 BACKWARDS MIGRATION FROM 710 AND COEXISTENCE WITH 710

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as new function.

Error description

  • Allow a V701 queue-manager backwards migration from V710, and
    coexistence with a V710 queue-manager in a queue-sharing group.
    .
    Additional keywords:
    MQ0710C/K
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
    *                 Release 0 Modification 1                     *
    ****************************************************************
    * PROBLEM DESCRIPTION: Enable backward migration to version    *
    *                      7.0.1 after a queue manager has been    *
    *                      started with version 7.1.0 code.        *
    *                                                              *
    *                      Enable version 7.0.1 and version 7.1.0  *
    *                      queue managers to coexist in a queue    *
    *                      sharing group.                          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    PTFs for the backward migration APAR must be applied on version
    7.0.1 prior to attempting fallback from WebSphere MQ for z/OS
    version 7.1.0.
    
    Attempting to restart a queue manager, which has been run with
    version 7.1.0 libraries, at version 7.0.1 without this PTF will
    result in abnormal termination of the queue manager with reason
    code 00C90D01.
    
    When reverting to Version 7.0.1 after running a queue manager at
    version 7.1.0 the following should be considered.
    
    - It will NOT be possible to backwards migrate to V701 from V710
      if the new functions available in V710 have been activated by
      the OPMODE parameter. Refer to the WebSphere MQ Version 7.1
      infocenter section b
      manager to version 7.0.1b
    
    - If V710 has been started with OPMODE=NEWFUNC then any attempt
      to restart the queue manager at V701 will result in abnormal
      termination of the queue manager with reason code 00C90D01.
    
    - CHLAUTH objects are stored on the SYSTEM.CHLAUTH.DATA.QUEUE.
      They will not be visible at V701 but will reappear when the
      queue manager is subsequently restarted at V710
    
    - New object attributes introduced in V710 will not be present
      in V701, and when you subsequently migrate to V710 they will
      be reset to default values.
    
    - If the queue manager is a cluster repository queue manager,
      then after backward migration, any other V710 queue managers
      in the cluster will not receive information about new V710
      attributes on clustered queues, topics and queue managers from
      this full repository.
    
    - If you are using the MQ Explorer to administer your queue
      manager then after migration between releases the following
      Explorer actions must be performed:
      o Remove the migrated z/OS queue manager
      o Add Remote Queue Manager
    
    This APAR also provides coexistence aspects when migrating queue
    sharing groups to V710.
    
    The coexistence aspects of this APAR allow a V701 queue manager
    in a queue sharing group to handle DISPLAY command responses
    from a V710 queue manager that contain new attributes that exist
    only in V710.
    .
    Following the application of the PTF for this APAR, the queue
    manager must be restarted if coexistence with any V710 queue
    managers in the same QSG is required.
    .
    

Problem conclusion

Temporary fix

Comments

  • ž**** PE12/11/26 FIX IN ERROR. SEE APAR PM72079  FOR DESCRIPTION
    

APAR Information

  • APAR number

    PM52894

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    010

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-11-25

  • Closed date

    2012-03-07

  • Last modified date

    2013-04-25

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    UK76760

Modules/Macros

  •    CMQXZMUC CSQECONN CSQIDPUT CSQIECUR CSQIERS3
    CSQIMGEK CSQMCNSB CSQMNMMS CSQMQDEF CSQOKYTB CSQORINI CSQOXATR
    CSQUDEFS CSQUXPRM CSQXRFIC CSQ45BPL CSQ45GEX CSQ5AUOB CSQ5PLNU
    CSQ5PQSG CSQ5READ CSQ5UPDT CSQ5U701
    

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R010 PSY UK76760

       UP12/03/22 P F203

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



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Document information


More support for:

z/OS family

Software version:

7.0.1

Reference #:

PM52894

Modified date:

2013-04-25

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